Obs. : 2010-05-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.759e+11
Venus      3.799e+11
Earth      3.640e+11
Mars       3.785e+11
Jupiter    3.730e+11
Saturn     3.679e+11
Uranus     3.730e+11
Neptune    3.648e+11
Pluto      3.638e+11